The New Practical Builder and Workman's Companion, Containing a Full Display and Elucidation of the Most Recent and Skilful Methods Pursued by Architects and Artificers ... Including, Also, New Treatises on Geometry ..., a Summary of the Art of Building ..., an Extensive Glossary of the Technical Terms ..., and The Theory and Practice of the Five Orders, as Employed in Decorative ArchitectureThomas Kelly, 1823 - 596 σελίδες |
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Αποτελέσματα 1 - 5 από τα 16.
Σελίδα 71
... axes at right angles , and bisecting each other , from one extremity , C , of the conjugate or shorter axis , with AE or BE , half of the transverse , or longer axis , describe arcs , cutting AB at F , f ; then F , f , are the two focal ...
... axes at right angles , and bisecting each other , from one extremity , C , of the conjugate or shorter axis , with AE or BE , half of the transverse , or longer axis , describe arcs , cutting AB at F , f ; then F , f , are the two focal ...
Σελίδα 83
... axis major , or transverse axis . 246. A straight line , drawn perpendicularly to the axis major , from any point in it , to meet the curve , is called an ordinate . 247 The middle of the axis major is called the centre of the figure ...
... axis major , or transverse axis . 246. A straight line , drawn perpendicularly to the axis major , from any point in it , to meet the curve , is called an ordinate . 247 The middle of the axis major is called the centre of the figure ...
Σελίδα 84
... axis of the cone , it will divide all the circles parallel to the base into two equal parts ; therefore QR and NO ... transverse and semi - conjugate axes , 2a : 2b :: 2b : p , the parameter ; therefore , ap = 26 ' , or if f = 1p , we shall ...
... axis of the cone , it will divide all the circles parallel to the base into two equal parts ; therefore QR and NO ... transverse and semi - conjugate axes , 2a : 2b :: 2b : p , the parameter ; therefore , ap = 26 ' , or if f = 1p , we shall ...
Σελίδα 87
... axis CB is a mean proportional between AF , FB , or between Af , fB , the distances of either focus from the two ... transverse axis . B M Let FM = R , ƒM = r , FC = ƒC = = ca. Then will FP = CF + CP = ca + x , By Geom . ( 160 ) .... FM2 ...
... axis CB is a mean proportional between AF , FB , or between Af , fB , the distances of either focus from the two ... transverse axis . B M Let FM = R , ƒM = r , FC = ƒC = = ca. Then will FP = CF + CP = ca + x , By Geom . ( 160 ) .... FM2 ...
Σελίδα 90
... transverse axis , the one at the extremity of the transverse , next to the point of intersection , will be to that which terminates in the point of contact , as that which passes through the centre is to the remaining one at the other ...
... transverse axis , the one at the extremity of the transverse , next to the point of intersection , will be to that which terminates in the point of contact , as that which passes through the centre is to the remaining one at the other ...
Συχνά εμφανιζόμενοι όροι και φράσεις
ABCD abscissa adjacent angles altitude angle ABD annular vault axes axis major base bisect called centre chord circle circumference cone conic section conjugate contains COROLLARY 1.-Hence cutting cylinder describe a semi-circle describe an arc diameter distance divide draw a curve draw lines draw the lines edge ellipse Engraved equal angles equal to DF equation equiangular figure GEOMETRY given straight line greater groin homologous sides hyperbola intersection join joist latus rectum less Let ABC line of section meet multiplying Nicholson opposite sides ordinate parallel to BC parallelogram perpendicular PLATE points of section polygon PROBLEM produced proportionals quantity radius rectangle regular polygon ribs right angles roof segment similar triangles square straight edge subtracted surface Symns tangent THEOREM timber transverse axis triangle ABC vault vertex wherefore
Δημοφιλή αποσπάσματα
Σελίδα 27 - If two triangles have two angles of the one equal to two angles of the other, each to each, and one side equal to one side, viz.
Σελίδα 20 - The areas of two triangles which have an angle of the one equal to an angle of the other are to each other as the products of the sides including the equal angles. D c A' D' Hyp. In triangles ABC and A'B'C', ZA = ZA'. To prove AABC = ABxAC. A A'B'C' A'B'xA'C' Proof. Draw the altitudes BD and B'D'.
Σελίδα 51 - The area of a parallelogram is equal to the product of its base and its height: A = bx h.
Σελίδα 15 - AXIOMS. 1. Things which are equal to the same thing are equal to one another. 2. If equals be added to equals, the wholes are equal. 3. If equals be taken from equals, the remainders are equal.
Σελίδα 15 - LET it be granted that a straight line may be drawn from any one point to any other point.
Σελίδα 28 - ... angles of another, the third angles will also be equal, and the two triangles will be mutually equiangular. Cor.
Σελίδα 81 - C' (89) (90) (91) (92) (93) 112. In any plane triangle, the sum of any two sides is to their difference as the tangent of half the sum of the opposite angles is to the tangent of half their difference.
Σελίδα 80 - The sine of an arc is a straight line drawn from one extremity of the arc perpendicular to the radius passing through the other extremity. The tangent of an arc is a straight line touching the arc at one extremity, and limited by the radius produced through the other extremity.
Σελίδα 28 - After remarking that the mathematician positively knows that the sum of the three angles of a triangle is equal to two right angles...
Σελίδα 22 - The perpendicular is the shortest line that can be drawn from a point to a straight line.